<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let res='hello tuture' instanceof String
        console.log('res',res); // false
        let p=String.prototype;
        let p1='hello tuture'.__proto__;
        console.log('__proto__',p1);
        console.log('prototype',p);
        let res2=p===p1;
        console.log('res2',res2);//true

    </script>
</body>
</html>